大众汽车 VW80000标准详细解读_7




4.9 Function classes and operating voltage ranges功能类别和工作电压范围


A DUT usually has several functions, which can each be allocated to different function classes.Function classes that are specific to the project can be defined for additional voltage parametersand test scopes (e.g., static operation up to 4,5 V)

NOTE 1: This standard does not provide any information on the reliability of the energy supplysystem and any voltages that may arise in relation to functional safety (ASIL).

一个 DUT 通常具有多个功能,每个功能可以分配到功能类别中。可以为项目特定的功能类别定义额外的电压参数和测试范围(例如,静态工作高达4.5V)。

注 1:本标准不提供有关能源供应系统可靠性以及与功能安全(ASIL)相关的任何电压可能产生的信息。


Minimum requirement for the use of the function classes:

使用功能级别的最低要求:


Function class 1: Functions that are relevant for a cold start or functions that are required tomaintain the energy supply

功能等级1:需要保证和维护电源供应或者与冷启动有关的功能。


Function class 2: At least the ASIL A requirements as per ISO 26262 (all parts)1) apply to theelectrical energy supply system of a function, or the function is defined asrelevant to limp-home mode.

功能等级 2:至少根据ISO 26262(所有部分)的ASIL A要求适用于功能的电气能源供应系统或者跛行模式功能(见表2)。Limp Home(跛行模式),是指汽车的电控设备出现故障的时候,一开始主要集中于发动机控制和变速箱单片机,在模块或者传感器信号出现故障的时候,模块仍旧能够完成基本的功能,使得汽车仍能以最低要求的性能水平行驶。


Function class 3: Functions that are not classified in one of the function classes 1, 2, 4, 5, 6or in a function class that is relevant to the project

功能等级 3:不在功能等级1,2,4,5,6里的功能


Function class 4: Functions that must be retained during „Engine off“ or „Vehicle electricalsystem supply only from store“

功能等级4:“在发动机关闭”或者“电系统仅从电池供应”期间必须保留的功能。


Function class 5: Functions that need to be available when the vehicle electrical system supplyis active (supplying the 12-V energy network via a 12-V alternator or aDC/DC converter)

功能等级 5:需要在车辆电气系统供电时可用的功能(通过12V交流发电机或DC/DC转换器向12V能量网络供电)


Function class 6: Bus communication2

功能等级6:网络通讯


编制产品试验计划时,需要根据产品feature list(功能列表)按上述定义要求确定产品功能类别,电性能试验中不同功能要求是不一样的。不能一概而论,这点非常重要。


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